Kootenai River Report – April 24-31, 2026 Inflow to Lake Koocanusa: 23,790 CFS Kootenai River Flow: 19,900 CFS 46 degrees, 8 foot visibility River Temperature: 41.7 degrees River Condition: Glacial tinge with 6-8 foot visibility Hatches: Little Olive Stones, Little Blue Quills, Midges, March Browns, Large Black Ants on the warmer days. Effective Patterns: Dry: Parachute Adams, Purple Haze, Chubby …